A harmful algal bloom, better known as a red tide, has been building up at Elands Bay on the West Coast, about 220km north of Cape Town.
Investigations into the fish die-off and pinkish-purple colour of the Sentosa South Cove waterway earlier this month have found that they were caused by the heavy and persistent rainfall in recent weeks that altered water conditions.. Read more at straitstimes.com.
The discoveries on Mirror Lake and Lake George spark concerns about the number of nutrients entering the lakes.
The Central District Health Department as well as the Southwest District Health and Idaho Department of Environmental Quality says recent water samples indicate there were concentrations of toxin-producing cyanobacteria in the reservoir.
Residents note significant changes in the Christiansen Lake ecosystem since 2019. This includes fewer nesting birds, fish, and mammals around the lake, while the leech population has increased along with the occurrence of algal blooms.
Another day of dead marine life surfacing in Biscayne Bay as the swath of suffocated fish appears to be spreading.
Locals Saturday expressed resentment over the presence of a red algal bloom on Dal surface that has completely changed the lake’s colour into yellowish.
The image shows a bloom of phytoplankton in the Barents Sea, north of Scandinavia and Russia.The floating plant-like organisms are showing up in higher concentrations across the Arctic Ocean.
Seaweed native to the northwest Pacific is invading the rich marine waters of the Strait of Gibraltar and the brown algae is clogging up fishermen's nets and endangering their way of life.
Eutrophication — excess nutrients in water — and environmental changes were identified as the cause of the harmful algal blooms in the fresh aquatic system of the Achencoil.
Don't swim in these three lakes if you notice any of these features, authorities say.
"Lake Erie receives a lot of attention for its problems with HABS, but Ohio’s inland lakes and waterways share the increasingly dangerous problem and its impacts on health as a source of drinking water and recreation, and the potential loss of millions of dollars in tourism and lakeside property values."
About 60 people from the Dzawada̱ʼenux̱w First Nation have been evacuated to Alert Bay after blue-green algae was found in their well water.
In 2020, contamination of the community water well by cyanobacteria caused the community to evacuate for 26 days. How the well was contaminated is unknown.
Clams collected in late August had concentrations of saxitoxin considered dangerous for human consumption. The samples were collected in August about 70 miles north of St. Lawrence Island and about 50 miles north of Cape Lisburne, much further north than previously documented.
Blooms are often associated with low dissolved oxygen events and warm ocean water temperatures and weather changes – all of which we are, or have been, experiencing," said Kiemele. Farm owner Cermaq says it has deployed fish protection countermeasures that have already caused conditions to improve.
Returning to port with tons of algae in their trammel nets, with hardly any fish, has become a common drama for the men fishing in Spain's Southern coast. The same “catastrophe” is also threatening the marine biodiversity of the area and piling up on beaches.
A blue-green algae advisory is in effect for Prior Lake in Thetis Lake Regional Park after the toxic blooms were spotted in the water.
During their three weeks aboard the Healy, Bob Pickart and his team observed some Harmful Algal Blooms (HABs). One was near Point Hope.
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